Biosafety level 4 (BSL-4) is the highest level of biosafety precautions, and is appropriate for work with agents that could easily be aerosol-transmitted within the laboratory and cause severe to fatal disease in humans for which there are no available vaccines or treatments.
While working in a science lab it is very vital to take all the necessary safety precautions while working with science equipment.. Laboratories are dangerous and if safety precautions are not taken, there is a possibility of mishaps occurring.
2 Legal requirements of health and safety in the UK. The Health and Safety at Work etc. Act (HSWA) 1974 states that: It is the duty of every employer, so far as is reasonably practicable, to ensure the health, safety and welfare at work of all employees (this includes students).